| Type: | Ortsteil |
| Town: | Blankenburg am Harz |
| Image Coa: | DE-ST 15-0-85-055 Cattenstedt COA.png |
| Coordinates: | 51.7758°N 10.9669°W |
| State: | Sachsen-Anhalt |
| District: | Harz |
| Elevation: | 242 |
| Area: | 8.01 |
| Population: | 720 |
| Stand: | 2006-12-31 |
| Postal Code: | 38889 |
| Area Code: | 03944 |
| Licence: | HZ |
| Website: | www.blankenburg.de |
Cattenstedt is a village and a former municipality in the district of Harz, in Saxony-Anhalt, Germany. Since 1 January 2010, it is part of the town Blankenburg am Harz.